This is a special service launched by China Telecom in 16 4G pilot cities - users can be exempted from traffic charges as long as they use the three clients of iKan 4G, iWan 4G and iTing 4G. Experience high-definition movies, popular mobile games, and lossless music under the high-speed 4G network.
However, it is currently only available to users in more than 16 cities including Shanghai, Xi'an, Chengdu, Nanjing, and Shenzhen, and more experience cities will be opened in the future.